Patents by Inventor Raymond A. Dufour

Raymond A. Dufour has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Water bath shaker
    Patent number: D288600
    Type: Grant
    Filed: August 31, 1984
    Date of Patent: March 3, 1987
    Assignee: Lab-Line Instruments, Inc.
    Inventors: Dirk E. Vander Hout, Raymond A. Dufour